There is a thread where someone actually bought a dissolved oxygen meter and measured DO under various conditions.
Sometimes the skimmer seemed to increase DO slightly, sometimes it seemed to depress DO slightly. The impact was always relatively modest.
I try to make data-driven decisions whenever possible. I'm still not seeing any evidence that a skimmer is necessary or even relevant to maintaining good dissolved O2 level. There are other benefits running a skimmer, no doubt. But take away the skimmer cup and I have doubts.
Disolved Oxygen in our Reeftanks - Who else measures it ???
Disolved Oxygen in our reef tanks! Who else measures it??? Since Reef systems nowadays become more compact, artificially loaded with bacteria to accelerate and manage nutrient export, it can happen very quick that something goes wrong. In my personal case I was always wondering when issues in...
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Sometimes the skimmer seemed to increase DO slightly, sometimes it seemed to depress DO slightly. The impact was always relatively modest.
I try to make data-driven decisions whenever possible. I'm still not seeing any evidence that a skimmer is necessary or even relevant to maintaining good dissolved O2 level. There are other benefits running a skimmer, no doubt. But take away the skimmer cup and I have doubts.